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Science China Physics Mechanics and Astronomy

Transparency and amplification in a hybrid system of the mechanical resonator and circuit QED

Hui Wang, Hui-Chen Sun, Jing Zhang, Yu-xi Liu

Published Nov 29, 2012• 21 citations
Publisher
DOI
10.1007/s11433-012-4913-4

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We theoretically investigate the transmission and group delay of a probe field incident on a hybrid optomechanical system, which consists of a mechanical resonator simultaneously coupled to an optical cavity and a two-level system (qubit). The cavity field is driven by a strong red-detuned control field, and a weak coherent mechanical driving field is applied to the mechanical resonator. With the assistance of additional mechanical driving field, it is shown that double optomechanically induced transparency can be switched into absorption due to destructive interference or amplification because of constructive interference, which depends on the phase difference of the applied fields. We study in detail how to control the probe transmission by tuning the parameters of the optical and mechanical driving fields. Furthermore, we find that the group delay of the transmitted probe field can be prolonged by the tuning the amplitude and phase of the mechanical driving field.